NumberResearchRecent prefix assignments
10 prefixes assigned in May 2026 · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, May 2026
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-29 | 350-261 | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-05-29 | 626-845 | ONVOY, LLC - CA | 649C | LA PUENTE | CA |
| 2026-05-21 | 279-293 | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2026-05-21 | 408-939 | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2026-05-21 | 424-569 | ONVOY, LLC - CA | 649C | SNMN SNMN | CA |
| 2026-05-21 | 738-998 | ONVOY, LLC - CA | 649C | LSAN DA 02 | CA |
| 2026-05-21 | 858-447 | ONVOY, LLC - CA | 649C | RNCHOPNQTS | CA |
| 2026-05-21 | 925-607 | ONVOY, LLC - CA | 649C | ANTIOCH | CA |
| 2026-05-06 | 530-916 | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2026-05-06 | 840-997 | ONVOY, LLC - CA | 649C | CLAREMONT | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.